Help Meeeee

Why does the public function onEnable () {need it: void after the () ??

 

The : indicates a return typehint. The void indicated nothing.
: void means that the function returns nothing.

 

So when to use: void or always use: void

 

It is not required. It is good to have though.

 

I would suggest going trough PHP's docs,
More info on this -> https://www.php.net/manual/en/functions.returning-values.php